Murnane, R. J., Willett, J., & Tyler, J. H. (1999). Who benefits from obtaining a GED?: Evidence from high school and beyond. National Bureau of Economic Research.
Chicago-referens (17:e uppl.)Murnane, Richard J., J.B Willett, och John H. Tyler. Who Benefits from Obtaining a GED?: Evidence from High School and Beyond. Cambridge: National Bureau of Economic Research, 1999.
MLA-referens (9:e uppl.)Murnane, Richard J., et al. Who Benefits from Obtaining a GED?: Evidence from High School and Beyond. National Bureau of Economic Research, 1999.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.